Archived posting to the Leica Users Group, 2006/09/21

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Subject: [Leica] Epson R-D1 exposure range
From: davison_m at (MARK DAVISON)
Date: Thu Sep 21 20:20:53 2006

I did a quick check of the Epson R-D1 exposure range today, using RAW files. 
  It looks like there is usable data in the range -4 to +4 stops, relative 
to the metered exposure, shooting at a lightly textured grey card.

This explains why the R-D1 is so remarkably immune to blown highlights, but 
sometimes produced slightly muddy results in flat ligt.

I did a recheck of the D200, shooting RAW files with the contrast set to 
low.  This yielded a useful range of -4 to +2.7 stops.  Therefore I suspect 
your results may very depending on the contrast curve you have selected in 
the camera. At -4 stops chromatic noise is just starting to become visible.

I have spent considerable time shooting sports with the Nikon D2h.  I cannot 
report having much luck with Ted Grant's KISS suggestion.  If you are 
shooting on a nice sunny day with the matrix metering and automatic exposure 
(with no compensation) you will get completely blown out white jerseys, and 
the ball will inevitably look like a flat white disk.  Dial in -1 exposure 
comp, and Bob's your uncle. (I just watched Anthony Hopkins in  The Fastest 
Indian, who uses that expression all the time.) Alas, digital exposure 
response has no shoulder, and no forgiveness. If you really want KISS, I 
guess you need to stick to Tri-X.

Mark Davison

>From: mehrdad <>
>Reply-To: Leica Users Group <>
>To: "Leica Users Group" <>
>Subject: Re: [Leica] M8 and Digital Exposure Correction
>Date: Thu, 21 Sep 2006 19:46:31 -0700
>no, nothing on the menu system dante, also all the6bit coding is for
>jpeg, only, if you shoot    raw, it is for the raw developer to use
>info, i am very sure that the phase one software does not use it
>On 9/21/06, Dante Stella <> wrote:
>>Did anyone who was able to use an M8 see an option for/reference to
>>Digital Exposure Correction and/or Exposure Bias (this is NOT plain
>>exposure correction).  This is a Kodak DSP technology for JPGs that
>>Leica might have acquired along with the sensor.
>>Leica Users Group.
>>See for more information
>  -------------------------------------
>  regards, mehrdad
>Leica Users Group.
>See for more information

In reply to: Message from msadat at (mehrdad) ([Leica] M8 and Digital Exposure Correction)